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''Sirex'' is a genus of wasps in the family Siricidae, the horntails or wood wasps. They inject eggs with fungal endosymbionts into wood. The fungus is contained in a mycangium which nourishes it with secretions, and in turn it digests wood for the wasp larva. The genus includes economically important pests; ''S. noctilio'', known simply as the 'Sirex woodwasp' is an invasive species, having spread widely across the world from its original range.〔(Sirex Woodwasp – ''Sirex noctilio''. ) New York State Department of Environmental Conservation, 2011.〕〔Hurley, B. P., et al. (2007). (A comparison of control results for the alien invasive woodwasp, ''Sirex noctilio'', in the southern hemisphere. ) ''Agricultural and Forest Entomology'' 9(3), 159–71.〕 ==Species== *''Sirex cyaneus'' – blue horntail * ''Sirex juvencus'' – steely-blue woodwasp * ''Sirex noctilio'' – Sirex woodwasp 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sirex」の詳細全文を読む スポンサード リンク
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